bindbox-game/internal/api/user/points_redeem_coupon_app.go
邹方成 45815bfb7d chore: 清理无用文件与优化代码结构
refactor(utils): 修复密码哈希比较逻辑错误
feat(user): 新增按状态筛选优惠券接口
docs: 添加虚拟发货与任务中心相关文档
fix(wechat): 修正Code2Session上下文传递问题
test: 补充订单折扣与积分转换测试用例
build: 更新配置文件与构建脚本
style: 清理多余的空行与注释
2025-12-18 17:35:55 +08:00

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package app
import (
"bindbox-game/internal/code"
"bindbox-game/internal/pkg/core"
"bindbox-game/internal/pkg/validation"
"net/http"
"strconv"
)
type redeemCouponRequest struct {
CouponID int64 `json:"coupon_id"`
}
type redeemCouponResponse struct {
Success bool `json:"success"`
CouponID int64 `json:"coupon_id"`
LedgerID int64 `json:"ledger_id"`
Message string `json:"message"`
}
// RedeemPointsToCoupon 积分兑换优惠券(仅支持直减金额券)
// @Summary 积分兑换优惠券
// @Description 使用积分兑换指定直减金额券,按比率 1元=100积分券面值为分
// @Tags APP端.积分
// @Accept json
// @Produce json
// @Security LoginVerifyToken
// @Param RequestBody body redeemCouponRequest true "请求参数"
// @Success 200 {object} redeemCouponResponse
// @Failure 400 {object} code.Failure
// @Router /api/app/users/{user_id}/points/redeem-coupon [post]
// RedeemPointsToCoupon 使用积分兑换优惠券处理器
// 功能扣减用户积分后为用户发放直减金额券并返回扣减流水ID与券ID
// 参数:无(通过上下文获取 user_idbody 解析 coupon_id
// 返回core.HandlerFunc 处理 POST /api/app/users/{user_id}/points/redeem-coupon
func (h *handler) RedeemPointsToCoupon() core.HandlerFunc {
return func(ctx core.Context) {
req := new(redeemCouponRequest)
rsp := new(redeemCouponResponse)
if err := ctx.ShouldBindJSON(req); err != nil {
ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
return
}
userID := int64(ctx.SessionUserInfo().Id)
sc, err := h.readDB.SystemCoupons.WithContext(ctx.RequestContext()).Where(h.readDB.SystemCoupons.ID.Eq(req.CouponID), h.readDB.SystemCoupons.Status.Eq(1)).First()
if err != nil || sc == nil {
ctx.AbortWithError(core.Error(http.StatusBadRequest, 150001, "coupon not found"))
return
}
if sc.DiscountType != 1 || sc.DiscountValue <= 0 {
ctx.AbortWithError(core.Error(http.StatusBadRequest, 150002, "only amount coupons supported"))
return
}
needPoints, _ := h.user.CentsToPoints(ctx.RequestContext(), sc.DiscountValue)
if needPoints <= 0 {
needPoints = 1
}
ledgerID, err := h.user.ConsumePointsFor(ctx.RequestContext(), userID, needPoints, "system_coupons", strconv.FormatInt(req.CouponID, 10), "redeem coupon", "redeem_coupon")
if err != nil {
ctx.AbortWithError(core.Error(http.StatusBadRequest, 150003, err.Error()))
return
}
if err := h.user.AddCoupon(ctx.RequestContext(), userID, req.CouponID); err != nil {
ctx.AbortWithError(core.Error(http.StatusBadRequest, 150004, err.Error()))
return
}
rsp.Success = true
rsp.CouponID = req.CouponID
rsp.LedgerID = ledgerID
rsp.Message = "ok"
ctx.Payload(rsp)
}
}